CN106789108A - A kind of communication equipment and its method for managing power supply - Google Patents
A kind of communication equipment and its method for managing power supply Download PDFInfo
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- CN106789108A CN106789108A CN201611110811.2A CN201611110811A CN106789108A CN 106789108 A CN106789108 A CN 106789108A CN 201611110811 A CN201611110811 A CN 201611110811A CN 106789108 A CN106789108 A CN 106789108A
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- power
- main control
- card
- control card
- business board
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/10—Current supply arrangements
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- Supply And Distribution Of Alternating Current (AREA)
Abstract
Embodiments of the invention disclose a kind of communication equipment and its method for managing power supply, are related to the communications field, are capable of the service efficiency of more efficient lifting means power supply module, to reduce equipment power consumption.The PMU of main control card in communication equipment, the rated power of power, the rated power of main control card, the power supply backup mode configuration information of power module, the power of blower module, the rated power of switching card and business board for obtaining power module；Power supply backup mode configuration information and power according to power module obtain power summation；The power of rated power and the blower module that main control card is deducted in power summation obtains the first dump power；The rated power controlled loading switching card and business board of rated power and business board according to the first dump power and the switching card.Embodiments of the invention are managed for communication equipment accurate power.
Description
Technical field
Embodiments of the invention are related to the communications field, more particularly to a kind of communication equipment and its method for managing power supply.
Background technology
Rack power of communication equipment is larger, and business board power is at tens of watts to hundreds of watts.Consider that power supply is hot standby
The need for part, generally, equipment generally supports the power module slot of more than 2.Additionally, it is contemplated that power module and can
Manufacturing, most rack-mount units are typically designed 4,8 or 12 power supply slots, the equipment to meet different power consumption.In order to support
The power consumption of whole machine, multiple power supplys typically support that the form for flowing realizes backup, and the power supply of outfit is needed with identical work(
Rate.It is general to require to use the power module of same model.Because power module and business board etc. are the part that can match, user
The power module and business board of varying number are selected according to demand, and collocation is adapted to the communication equipment of oneself demand.In addition, user
Demand also occur that change, such as business development, it is necessary to more business board.
Wherein, the equipment of multi-power module may use different backup modes in different user scene.When all power supplys
When being all connected on a power supply source, backuped each other between power module, namely what is often called backup.The quantity of backup is standby depending on what is used
Part number of power sources.When half power supply is connected on AC network, half power supply is connected on UPS (Uninterruptible Power
System/Uninterruptible Power Supply, uninterrupted power source) when, realize the backup between different power supply sources.Connect
AC network power and be connected on the power of UPS and will be enough to support the power consumption of whole machine, namely what is often called 1:1 is standby
Part.Further, it is also likely to be N+M (M between the power module inside two power supply sources>=0) back up, that is, the backup mould for mixing
Formula.The power of i.e. whole machine is not equal to the summation of each power module power
And in the prior art, all powers are included into usable power, do not consider backup problem and backup risk,
Additionally, the maximum for being needed according to the module for all modules (such as main control card, blower module, business board) in the prior art
The mode whether power consumption calculation power meets designs the distribution system of power module, there is larger waste, power module
Service efficiency it is not high.When new business board inserts cabinet, if power module can not provide enough power, and do not enter
The effective monitoring of row and manage, over current protection may be caused, cause equipment restart with middle circuit network, influence customer service
Stability；And may cause the power cannot to support newly to add business board, it is necessary to configure more power modules, cause be
System deployment cost increases.
The content of the invention
Embodiments of the invention provide a kind of communication equipment and its method for managing power supply, ensure that customer service stability
While lifting power module service efficiency.
First aspect, a kind of communication equipment of offer, including main control card, switching card, at least one business board, at least one
Blower module and at least one power module；The PMU of wherein described main control card connects the switching card, at least
One business board, at least one blower module and at least one power module, each described power module connect
Connect the switching card, at least one main control card, at least one business board and at least one blower module；
The PMU of the main control card, for obtain the power of power module, the main control card it is specified
Power, the power supply backup mode configuration information of power module, the power of the blower module, the switching card rated power with
And the rated power of business board；
The PMU of the main control card, for the power supply backup mode configuration information according to the power module with
And power obtains power summation；
The PMU of the main control card, for deducting the specified of the main control card in the power summation
The power of power and the blower module obtains the first dump power；
The PMU of the main control card, for according to the specified of first dump power and the switching card
Switching card and business board described in the rated power controlled loading of power and business board.
A kind of second aspect, there is provided method for managing power supply, including：
Main control card obtains power information, the rated power of main control card, the power supply backup of power module of power module
The rated power of mode configuration information, the power of blower module, the rated power of switching card and business board；
The main control card obtains power supply according to the power supply backup mode configuration information and power of the power module
Power summation；
The main control card deducts the rated power and the fan mould of the main control card in the power summation
The power of block obtains the first dump power；
The main control card is according to the rated power and business board of first dump power and the switching card
Switching card described in rated power controlled loading and business board.
In such scheme, communication equipment, including main control card, switching card, at least one business board, at least one fan
Module and at least one power module；The PMU of wherein described main control card connects the switching card, at least one
Business board, at least one blower module and at least one power module, each described power module connection institute
State switching card, at least one main control card, at least one business board and at least one blower module；The power management of main control card
Unit, for obtain the power of power module, the rated power of the main control card, power module power supply backup mode match somebody with somebody
The rated power of confidence breath, the power of the blower module, the rated power of the switching card and business board；According to described
The power supply backup mode configuration information and power of power module obtain power summation；In the power summation
The power of the middle rated power for deducting the main control card and the blower module obtains the first dump power；According to described first
Switching card described in the rated power controlled loading of the rated power and business board of dump power and the switching card and
Business board.Can be according to the power of power module, the main control card by the main control card of such scheme communication equipment
Rated power, the power supply backup mode configuration information of power module, the power of the blower module, the specified work(of the switching card
The rated power of rate and business board can be accurately controlled the loading of switching card and business board, it is ensured that customer service is steady
It is qualitative, while improving the service efficiency of power module.
Brief description of the drawings
Technical scheme in order to illustrate more clearly the embodiments of the present invention, below will be in embodiment or description of the prior art
The required accompanying drawing for using is briefly described, it should be apparent that, drawings in the following description are only some realities of the invention
Example is applied, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is the structure chart of communication equipment provided in an embodiment of the present invention；
Fig. 2 is a kind of flow chart of method for managing power supply provided in an embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
The system architecture and business scenario of embodiment of the present invention description are to more clearly illustrate that the present invention is implemented
The technical scheme of example, does not constitute the restriction for technical scheme provided in an embodiment of the present invention, those of ordinary skill in the art
Understand, with the differentiation and the appearance of new business scene of system architecture, technical scheme provided in an embodiment of the present invention is for similar
Technical problem, it is equally applicable.
The technical term that embodiments of the invention are used includes as follows：
Power supply Standby (standby) unit, is the auxiliary unit of large power supply, and acquiescence opens output, and power output is small,
Voltage is generally 12V or 5V；
Power supply main road unit, is the main output unit of large power supply, and output-controlled, output power, voltage is general
It is 48V or 54V；
UPS, uninterrupted power source.
General principle of the invention is：The PMU of main control card can obtain the power of power module, master
Control rated power, the power supply backup mode configuration information of power module, the power of blower module, the rated power of switching card of card
And the rated power of business board；And electricity is obtained according to the power supply backup mode configuration information and power of power module
Source power summation；After the rated power and the power of blower module for deducting main control card；Rated power according to switching card with
And the rated power controlled loading switching card and business board of business board.Switching card and business board can be accurately controlled
Loading, it is ensured that customer service stability, while improving the service efficiency of power module.
The above method is described in detail with reference to specific embodiment.Shown in reference picture 1, embodiments of the invention are carried
The communication equipment of confession includes：Main control card, switching card, at least one business board, at least one blower module and at least one
Power module；The PMU of wherein described main control card connects the switching card, at least one business board, at least one
Blower module and at least one power module, each described power module connect the switching card, at least one master control
Card, at least one business board and at least one blower module.
Exemplary, the communication equipment shown in Fig. 1 includes such as lower module：Main control card 11, switching card 12 (12-1,12-
2), blower module 13 (13-1,13-2), power module 14 (14-1,14-2), business board 15 (15-1,15-2).Certain this hair
It is only with comprising two switching cards, two blower modules, two business boards and two power modules in bright embodiment
As a example by illustrate, according to other quantity configure it is also possible.Wherein above-mentioned main control card 11, switching card 12 (12-1,12-
2), blower module 13 (13-1,13-2), power module 14 (14-1,14-2) and business board 15 (15-1,15-2) can lead to
The slot crossed on communication equipment is actively plugged in the machine frame of communication equipment.The power management list of main control card 11 in such scheme
Unit 111 by manage bus be connected to the PMU 121 of switching card 12, the PMU 131 of blower module 13,
The PMU 141 of power module 14 and the PMU 151 of business board 15.Also include in modules
The information memory cell 112 of information memory cell, wherein main control card 11 is connected to the power supply pipe of main control card 11 by internal bus
Reason unit 111, the information memory cell 122 of switching card 12 is connected to the PMU of switching card 12 by internal bus
121, the information memory cell 132 of blower module 13 is connected to the PMU 131 of blower module 13 by internal bus,
The information memory cell 142 of power module 14 is connected to the PMU 141 of power module 14, and industry by internal bus
The information memory cell 152 of business board 15 is connected to the PMU 151 of business board 15 by internal bus.Additionally,
Main control card 11 also includes the backup management unit 113, the temperature detecting unit 114 that are connected with PMU 111；Power module
14 also include the power supply Standby units 143, the power supply main road unit 144 that are connected with PMU 141；Wherein power supply mould
The power supply Standby units 143 of block 14 are connected to PMU 121, the fan mould of switching card 12 by power line
The PMU of the PMU 131 of block 13, the PMU 141 of power module 14 and business board 15
151.Power supply Stand By units 143 are output as PMU and the information memory cell confession of modules after upper electricity
Electricity.
Based on above-mentioned equipment framework, the PMU 111 of main control card 11, the power supply for obtaining power module 14
Power, the rated power of main control card 11, the power supply backup mode configuration information of power module 14, the power of blower module 13, friendship
Change the rated power of card 12 and the rated power of business board 15；Exemplary, the PMU 111 of main control card 11 can
With by the PMU 141 of power module 14 power is read in the information memory cell 142 of power module 14；
Main control card 11 reads the specified work(of main control card 11 by PMU 111 in the information memory cell 112 of main control card 11
Rate；Main control card 11 reads the electricity of power module 14 by PMU 111 in the backup management unit 113 of main control card 11
Source backups mode configuration information, wherein the power supply backup mode configuration information can be pre-configured in backup management unit 113；
The PMU 111 of main control card 11 can by the PMU 131 of blower module 13 blower module 13 letter
The power of blower module 13 is read in breath memory cell 132；The PMU 111 of main control card 11 can be by switching card 12
PMU 121 read switching card 12 rated power；The PMU 111 of main control card 11 can be by business
The PMU 151 of board 15 reads the rated power of business board 15.
The PMU 111 of main control card 11, for the power supply backup mode configuration information according to power module 14 with
And power obtains power summation.
Wherein, backup management unit 113 is configured by user according to equipment usage scenario, is responsible for power supply backup scheme
Record.When 1 power supply source of use, and backup mode is configured to N+M (M>=0) when, whole machine power available power be N number of power supply mould
The summation of block power；When 2 power supply sources are used, for example, a power supply source gets access to grid, another power supply meets UPS, when power supply backup side
Formula is configured to 1:1, when in same power supply source without backup, whole machine power available power is N/2 individual (wherein：N is total power supply number
Amount, and be even number) summation of power.When power supply backup mode is configured to 1:1, it is configured with N+M (M again in same power supply source>
=1) back up when, whole machine power available power for it is N number of (wherein：2 (N+M) are total number of power sources, and are even number) power
Summation.
The PMU 111 of main control card 11, the rated power for deducting main control card 11 in power summation
And the power of blower module 13 obtains the first dump power.
The PMU 111 of main control card 11, for the rated power according to the first dump power and switching card 12
And the rated power controlled loading switching card 12 and business board 15 of business board 15.
In such scheme, communication equipment includes main control card, switching card, at least one business board, at least one fan
Module and at least one power module；The PMU of wherein described main control card connects the switching card, at least one
Business board, at least one blower module and at least one power module, each described power module connection institute
State switching card, at least one main control card, at least one business board and at least one blower module；The power management of main control card
Unit, for obtain the power of power module, the rated power of the main control card, power module power supply backup mode match somebody with somebody
The rated power of confidence breath, the power of the blower module, the rated power of the switching card and business board；According to described
The power supply backup mode configuration information and power of power module obtain power summation；In the power summation
The power of the middle rated power for deducting the main control card and the blower module obtains the first dump power；According to described first
Switching card described in the rated power controlled loading of the rated power and business board of dump power and the switching card and
Business board.Can be according to the power of power module, the main control card by the main control card of such scheme communication equipment
Rated power, the power supply backup mode configuration information of power module, the power of the blower module, the specified work(of the switching card
The rated power of rate and business board can be accurately controlled the loading of switching card and business board, it is ensured that customer service is steady
It is qualitative, while improving the service efficiency of power module.
Further, since blower module design all leaves certain surplus, it is operated in during compared with the slow-speed of revolution, when power consumption is compared with full-speed operation
Gap is larger.Particularly in the communication equipment of middle and high end, power consumption difference is up to hundreds of watts.Therefore the PMU of main control card 11
111 environment temperatures that can also be detected according to temperature detecting unit 114 obtain the power of blower module；When it is determined that environment temperature is low
When rated temperature, the power of blower module under preset temperature is obtained；When it is determined that environment temperature is higher than the specified temperature
When spending, the power of blower module under full-speed operation is obtained.Wherein under preset temperature under the power of blower module and full-speed operation
The power of blower module can be with sheet format configuration in the information memory cell 132 of blower module 13.
Further, the PMU 111 of main control card 11, specifically for according to the first dump power and switching card
When 12 rated power determines that the first dump power meets the loading demand of switching card 12, controlled loading switching card 12.
The PMU 111 of main control card 11, the rated power for deducting switching card 12 in the first dump power
Obtain the second dump power.
The PMU 111 of main control card 11, for adding according to the second dump power successively control business board 15
Carry.
Specifically, being applied for card 15, the electricity of main control card 11 to avoid the second dump power from being not enough to all of business of loading
Source control unit 111, for according to the second dump power according to preset order successively control business board loading.For example, may be used
Loaded successively with according to the groove of business board position order or according to the priority order of business board 15.Additionally, work as having groove position
Business apply for card because dump power deficiency can not load when, the alarm that the main control card of communication equipment passes through serially printing underpower
Prompting.
Additionally, after equipment operation, if power failure or quantity are reduced, the weight of PMU 111 of main control card 11
It is new to calculate power.If still meeting the power that current whole machine needs, the action of abnormality processing is not carried out, after such as closing
The business board of loading；The PMU 111 of main control card 11, is additionally operable to be unsatisfactory for current adding when the second dump power of determination
During the power demand of all business boards for carrying, according to the second dump power and the power of all business boards of current loading
It is controlled according to default measure, default measure includes：Enable backup battery power, close low priority traffice board.For example,
According to the business board or the priority rule according to setting of being applied for card to business that are loaded after the orderly close-down of groove position, low priority is closed
Business board, or enable backup battery power to meet the loading demand that business is applied for card.After equipment operation, if business
Board quantity increases, and the PMU 111 of main control card 11 calculates the business board whether dump power meets needs loading
Demand power.If demand power is less than dump power, business board is allowed to load；If demand power is more than remaining work(
Rate, then do not allow new business board to load；If business board quantity is reduced, the PMU 11 of main control card 11 will be reduced
Business board power meter enter dump power.
Based on above-mentioned communication equipment, embodiments of the invention provide a kind of method for managing power supply, shown in reference picture 2, bag
Include following steps：
101st, main control card obtains power information, the rated power of main control card, the power supply of power module of power module
The rated power of backup mode configuration information, the power of blower module, the rated power of switching card and business board.
In a step 101, master control fixture body obtains the power of blower module and includes in the following way：Main control card obtains ring
Border temperature；When it is determined that environment temperature is less than or equal to rated temperature, the power of blower module under preset temperature is obtained；When it is determined that
When environment temperature is higher than the rated temperature, the power of the blower module under full-speed operation is obtained.
102nd, main control card obtains power supply according to the power supply backup mode configuration information and power of the power module
Power summation.
103rd, main control card deducts the rated power and the fan mould of the main control card in the power summation
The power of block obtains the first dump power.
104th, the main control card is according to first dump power and the rated power and business board of the switching card
Switching card and business board described in the rated power controlled loading of card.
Wherein step 104 specifically includes following steps：
The volume of S1, main control card according to the rated power and business board of first dump power and the switching card
Constant dc power control loads the switching card and business board, including：
S2, main control card determine that described first is remaining according to the rated power of first dump power and the switching card
When power meets the loading demand of the switching card, switching card described in controlled loading；
The rated power that S3, main control card deduct the switching card in first dump power obtains the second remaining work(
Rate；
The loading of S4, main control card according to second dump power successively control business board.
Step S4 is specially：Main control card is according to second dump power according to preset order successively control business board
Loading, the preset order includes：The groove position order of the business board, the priority of the business board.
It is further also include step 105, when the main control card determines that second dump power is unsatisfactory for current loading
All business boards power demand when, according to second dump power and the work(of all business boards of current loading
Rate is controlled according to default measure, and the default measure includes：Enable backup battery power, close low priority traffice plate
Card.
In such scheme, the main control card of communication equipment can obtain the power of power module, the main control card
Rated power, the power supply backup mode configuration information of power module, the power of the blower module, the specified work(of the switching card
The rated power of rate and business board；Power supply backup mode configuration information and power according to the power module are obtained
Power taking source power summation；Deduct in the power summation rated power and the blower module of the main control card
Power obtains the first dump power；According to first dump power and the rated power and business board of the switching card
Rated power controlled loading described in switching card and business board.Being capable of foundation by the main control card of such scheme communication equipment
The power of power module, the rated power of the main control card, the power supply backup mode configuration information of power module, the wind
Fan module power, the rated power of the switching card and business board rated power can be accurately controlled switching card and
The loading of business board, it is ensured that customer service stability, while improving the service efficiency of power module.
Additionally, also provide it is a kind of calculate readable media (or medium), including carry out above-described embodiment when executed
The computer-readable instruction of the operation of method.
In addition, a kind of computer program product is also provided, including above computer readable media (or medium).
It should be understood that in various embodiments of the present invention, the size of the sequence number of above-mentioned each process is not meant to that execution is suitable
The priority of sequence, the execution sequence of each process should be determined with its function and internal logic, without the implementation of the reply embodiment of the present invention
Process constitutes any restriction.
Those of ordinary skill in the art are it is to be appreciated that the list of each example described with reference to the embodiments described herein
Unit and algorithm steps, can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
Performed with hardware or software mode, depending on the application-specific and design constraint of technical scheme.Professional and technical personnel
Described function, but this realization can be realized it is not considered that exceeding using distinct methods to each specific application
The scope of the present invention.
It is apparent to those skilled in the art that, for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, may be referred to the corresponding process in preceding method embodiment, will not be repeated here.
In several embodiments provided herein, it should be understood that disclosed system, apparatus and method, can be with
Realize by another way.For example, apparatus embodiments described above are only schematical, for example, the unit
Divide, only a kind of division of logic function there can be other dividing mode when actually realizing, for example multiple units or component
Can combine or be desirably integrated into another system, or some features can be ignored, or do not perform.It is another, it is shown or
The coupling each other for discussing or direct-coupling or communication connection can be the indirect couplings of equipment or unit by some interfaces
Close or communicate to connect, can be electrical, mechanical or other forms.
The unit that is illustrated as separating component can be or may not be it is physically separate, it is aobvious as unit
The part for showing can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be according to the actual needs selected to realize the mesh of this embodiment scheme
's.
In addition, during each functional unit in each embodiment of the invention can be integrated in a processing unit, it is also possible to
It is that unit is individually physically present, it is also possible to which two or more units are integrated in a unit.
If the function is to realize in the form of SFU software functional unit and as independent production marketing or when using, can be with
Storage is in a computer read/write memory medium.Based on such understanding, technical scheme is substantially in other words
The part contributed to prior art or the part of the technical scheme can be embodied in the form of software product, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used to so that a computer equipment (can be individual
People's computer, server, or network equipment etc.) perform all or part of step of each embodiment methods described of the invention.
And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (English full name:Read-only memory, English letter
Claim：ROM), random access memory (English full name：Random access memory, English abbreviation：RAM), magnetic disc or light
Disk etc. is various can be with the medium of store program codes.
The above, specific embodiment only of the invention, but protection scope of the present invention is not limited thereto, and it is any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all contain
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of communication equipment, it is characterised in that including main control card, at least one switching card, at least one business board, at least
One blower module and at least one power module；The PMU connection switching card of wherein described main control card,
At least one business board, at least one blower module and at least one power module, each described power supply mould
Block connects the switching card, at least one main control card, at least one business board and at least one blower module；
The PMU of the main control card, for obtain the power of power module, the rated power of the main control card,
The power supply backup mode configuration information of power module, the power of the blower module, the rated power of the switching card and industry
The rated power of business board；
The PMU of the main control card, for power supply backup mode configuration information and electricity according to the power module
Source power obtains power summation；
The PMU of the main control card, the rated power for deducting the main control card in the power summation
And the power of the blower module obtains the first dump power；
The PMU of the main control card, for the rated power according to first dump power and the switching card
And switching card and business board described in the rated power controlled loading of business board.
2. communication equipment according to claim 1, it is characterised in that
The PMU of the main control card, specifically for according to the specified of first dump power and the switching card
When power determines that first dump power meets the loading demand of the switching card, switching card described in controlled loading；
The PMU of the main control card, the rated power for deducting the switching card in first dump power
Obtain the second dump power；
The PMU of the main control card, for the loading according to second dump power successively control business board.
3. communication equipment according to claim 1, it is characterised in that the PMU of the main control card, for root
According to second dump power according to preset order successively control business board loading, the preset order includes：The industry
The groove position order of business board, the priority of the business board.
4. communication equipment according to claim 1, it is characterised in that the PMU of the main control card, is additionally operable to
It is surplus according to described second when it is determined that second dump power is unsatisfactory for the power demand of all business boards of current loading
The power of complementary work rate and all business boards of current loading is controlled according to default measure, and the default measure includes：
Enable backup battery power, close low priority traffice board.
5. communication equipment according to claim 1, it is characterised in that the PMU of the main control card is according to temperature
The environment temperature of detection unit detection obtains the power of blower module；
When it is determined that environment temperature is less than or equal to rated temperature, the power of the blower module under the rated temperature is obtained；
When it is determined that environment temperature is higher than the rated temperature, the power of the blower module under full-speed operation is obtained.
6. a kind of method for managing power supply, it is characterised in that including：
Main control card obtains power information, the rated power of main control card, the power supply backup mode of power module of power module
The rated power of configuration information, the power of blower module, the rated power of switching card and business board；
The main control card obtains power according to the power supply backup mode configuration information and power of the power module
Summation；
The main control card deducts in the power summation rated power and the blower module of the main control card
Power obtains the first dump power；
The main control card is specified according to the rated power and business board of first dump power and the switching card
Power Control loads the switching card and business board.
7. method according to claim 6, it is characterised in that the main control card is according to first dump power and institute
The rated power of switching card and switching card and business board described in the rated power controlled loading of business board are stated, including：
The main control card determines the described first remaining work(according to the rated power of first dump power and the switching card
When rate meets the loading demand of the switching card, switching card described in controlled loading；
The rated power that the main control card deducts the switching card in first dump power obtains the second dump power；
Loading of the main control card according to second dump power successively control business board.
8. method according to claim 6, it is characterised in that the PMU of the main control card is according to described second
The loading of dump power control business board successively, including：
The main control card according to second dump power according to preset order successively control business board loading, it is described default
Order includes：The groove position order of the business board, the priority of the business board.
9. method according to claim 6, it is characterised in that methods described also includes：
When the main control card determines that second dump power is unsatisfactory for the power demand of all business boards of current loading,
Power according to second dump power and all business boards of current loading is controlled according to default measure, described
Default measure includes：Enable backup battery power, close low priority traffice board.
10. method according to claim 6, it is characterised in that the power that the main control card obtains blower module includes：
The main control card obtains environment temperature；When it is determined that environment temperature is less than or equal to rated temperature, the specified temperature is obtained
The power of the blower module under degree；When it is determined that environment temperature is higher than the rated temperature, the wind under full-speed operation is obtained
Fan the power of module.
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